The neighborhood of Harpeth Valley Park in Nashville-Davidson metropolitan government, Tennessee, displays a racial composition categorized as "Low Diversity" as of 2022. The white population comprises 86% of the neighborhood's demographic landscape. Over the past decade, the area has experienced steady population growth, reaching 1,829 residents in 2022, with a median income of $86,566. Harpeth Valley Park is situated near the Harpeth River, providing residents with natural surroundings and outdoor recreational opportunities.

From 2013 to 2022, Harpeth Valley Park has maintained its status as a "Low Diversity" neighborhood. The white population has remained the dominant racial group, fluctuating between 82% and 91%. Minor shifts in other racial categories have occurred: the black population increased from 4% to 6%, the Hispanic population grew from 2% to 3%, and the "two or more races" category increased from 3% to 4%, with a notable spike to 9% in 2020. These changes indicate a slow trend towards increased diversity, although the neighborhood remains within the "Low Diversity" category.

The median income in Harpeth Valley Park has grown overall, increasing from $80,082 in 2013 to $86,566 in 2022, representing an 8.1% increase over the decade. This growth has not been linear, with fluctuations including a peak of $87,378 in 2018 and the highest median income of $91,182 in 2021. The population has grown consistently from 1,255 in 2013 to 1,829 in 2022, a significant increase of about 45.7%. This population growth, combined with the overall increase in median income, suggests that the neighborhood has become increasingly attractive to new residents.